Car-axle transmission



Feb. 21, 1928. 1,660,297

E. G. sMrrH GAR AXLE TRANSMISSIONy original Filed Feb. 1s. 1924 i fixed position.`

y baris offset or against the correslionding guide roller and will tend to move the bar 14 longitudinally in such direction.` The pins or bolts 18 coacting with the slots 19 prevent the bar from moving too great a distance and consequent` vas it moves laterally with respect to the frame. If desired, a certain amount of tension or friction maybe vprovided between the bar and its bearings which maybe adjusted or regulated byI tightening thebolts 18 if a slight amount of give or yielding is provided in t-he bearino'. j

VIn the modified form ofrenstruction shown in Figures 4 to 6, inclusive, the pulley is provided with guide rollers 2() which are mounted on a guide bar 21. This bent as shown at 22 in a horizontal plane inorder to clear theywheel 10 as shown in Figures 4 and `5. VV'lheends of the bar engage with bearings' 23 on the side beams 9 of the truck frame. These bearings i arealso provi-ded With bolts clnvliich en` gage with slots 25 in the ends of the bar in themannerabove described. In this form of the device, I alsoprovide tension means tending to hold thecross bar in anormal or InV the 4particular form shown, springs 25 are arranged vat each end of the bar. One endof eachspring engages with the adjacent faceof the bearing 23 and the opposite end engages with a Washer `or collar 26 which is .slidably mounted on the bar 21 and which engages with another collar or Washer 27 which is secured to the bar 21 in any suitable manner as by means of a A pin or bolt 28. A keeper 29 issecured to guide barand rollers in :normal or fixed po the bearing 23 and is adapted to `be engaged by the collar. 26 to limit the movement thereof.

When the axle and Wheel shifts laterally, the wheel 10 will engage with one of the guide rollers 2O and will tend to move theA bar 21 in 'the corresponding directionv against the tension of one of the springs 25. l/Vhen the bar is pressing against one of thesprings the spring at the opposite end Will be hel-d by its `keeper so that it will not `oppose the action of the other spring. In`

this manner the springs tend to hold the sition but at the same time permitting a certain amount oflateral movement.

. c 1t will alsoV be seen that the springs tend to cushion the action between the universal pulley and the guide` rollers so that the rollers or p ul-v ley will not be 4apt to be injured by the lateral movement of the Wheels and axle.

In view of the fact that there vare many types of car trucks it Will be apparent that this invention will of necessity be modilied for the different conditions, and therefore I do not Wish to be limited to the particular form or arrangement herein shown and. de-

scribed, exceptA as specified in the following` claims, in Which l claim: i 1. A-guidefor a universal pulley mounted on a car axle,eomprising a transverse guide member, guides secured to said memberv and i adapted to engage with the pulley, bearings for said guide memberand meanslirniting the longitudinal movement of lsuch member.

` 2. A guide'meehanism of the character set forth, comprising bearings securedA toa ear truck, a barmountedin said bearings, means for limiting the `longitudinal movement of the bar and guide rollers mounted on'the bar for engagement lwith the universal pulley.

3. The combination With a'railvvay car, ofV

a universal pulley Y1nf`m1ite l on one of the axles thereof,bearings secured to the truck frame, across bar mounted in said bearings and havingslots intheV ends thereof, bolts engaging with said slots and guide Vrollers securedto the bar and adapted to engage with the sides of the pulley." f

4. In an apparatus of the character set forth, the combination with a railway car,

soY

of a universal pulley mounted on one of the Y car axles,bearings secured to the side beams of the truck frame, bolts engaging With said bearings, a cross bar having its ends fittingV in said bearings and having slots for receiving the bolts, guide members secured toA said bar and adapted to engage with the pulley, the `arrangement being such that the bar may have `a limited movement with respect to the frame, substantially as described.

5. The combination With a railway car, of `a universal pulleymounted on one of the car axles, guide means for holding the pulley in vertical position, and resilient means 4tendnormal position;

G. A guide for universal pulley of the character set forth, comprising across bar, guide members secured tothe bar and adaptedto engage With the pulley, bearings for said bar and springs tending to hold the bar in normal position. y l

7. The combination With a lrailway car, of

ing to hold the guide means in central or a universal pulley kmounted Aon one of its` tween the collars'` and the bearings, keepers for limiting the movement-of the collars and ear axle guide rollers for engagement With Washers secured to the bai" and adapted to vsaid jpullQ/,Said guide bai' being bent to proengzige with the collars. Vide clearance for the -pulley and means 10V 9. The combination with a railway caitending to liinitvthe longitudinal movement Struck, of bearings mounted on the truck ol said bar. v v v beams, a'guide bar sldably mounted in said 1 f bearings, a universal pulley mounted on thel l EUGENE G. SMITH.y 

